Mailing-List: contact log4j-dev-help@logging.apache.org; run by ezmlm
Precedence: bulk
Reply-To: "Log4J Developers List" <log4j-dev@logging.apache.org>
Received-SPF: pass (athena.apache.org: domain of nicholas@nicholaswilliams.net
 designates 209.85.219.42 as permitted sender)
Content-Type: text/plain; charset=us-ascii
Mime-Version: 1.0 (Apple Message framework v1283)
Subject: Config additions,
 WAS: Confused: want low latency: do I need BOTH async logger AND async
 appender??
From: Nick Williams <nicholas@nicholaswilliams.net>
In-Reply-To: 
 <40FC8698D6100D459BEBAF60E30E2EEA3719CB6E@GAALPA1MSGUSR9G.ITServices.sbc.com>
Date: Tue, 23 Jul 2013 10:46:54 -0500
Content-Transfer-Encoding: quoted-printable
Message-Id: <8984B4E5-2859-438A-A349-8C0B0ED542D1@nicholaswilliams.net>
References: 
 <40FC8698D6100D459BEBAF60E30E2EEA3719CB6E@GAALPA1MSGUSR9G.ITServices.sbc.com>
To: Log4J Developers List <log4j-dev@logging.apache.org>

I don't know the answer to this guy's question on the user's list, but =
it brought up something interesting that we need to look at. Already (in =
a separate issue) we have talked about needing a config element for JMX =
so that you don't have to use properties in this manner. IMO, if there's =
not a way to set these AsyncLogger configuration options in =
log4j2.xml/json, that needs to be added, too. You should never have to =
do System.setProperty (or -D on the command line) to get Log4j =
configured properly.

My $0.02.

Nick

On Jul 23, 2013, at 10:39 AM, SMITH, CURTIS wrote:

> http://logging.apache.org/log4j/2.x/manual/async.html
>=20
> This URL describes that v2 has both async logger and async appender.   =
What is the suggested config for an embedded situation where I want low =
latency, nothing fancy?
>=20
> I've had do this in code since we don't own the cmd line:  OSGi and =
system vendor owns the box and java command line.
>=20
> System.setProperty("AsyncLoggerContextSelector", =
"org.apache.logging.log4j.core.async.AsyncLoggerContextSelector");
> System.setProperty("AsyncLogger.RingBufferSize", "128");        // min =
size permissable to keep memory low
> System.setProperty("AsyncLogger.WaitStrategy", "Block");        // =
less CPU, better for embedded env
> System.setProperty("log4j2.disable.jmx", "true");               // =
saves on a jmx jar and we don't use JMX anyway
>=20
> Tnx curt
>=20
> Curt Smith
> AT&T Digital Life
> DLC Software Development
> 404-499-7013
> (cell) 678-365-6508
>=20
>=20
>=20


---------------------------------------------------------------------
To unsubscribe, e-mail: log4j-dev-unsubscribe@logging.apache.org
For additional commands, e-mail: log4j-dev-help@logging.apache.org